VCC new hours of operation Published Sept. 11, 2012 28th Bomb Wing Public Affairs ELLSWORTH AIR FORCE BASE, S.D. -- Effective immediately, the 28th Security Forces Squadron Visitor Control Center is open from 6 a.m. to 8 p.m., Monday through Friday, and from 8 a.m. to 4 p.m., Saturday and Sunday. For more information, call the VCC at (605) 385-2895.